The Raven Ridge and the adjacent parallel Squaw Ridge are northwest
striking rock exposures which provide an opportunity to understand this part of Earth's history. This section through a sequence of rock layers that were deposited between ~53-49 million years ago, has become exposed because of its later
tectonic history. The
outcrops span the geological time interval that includes the early and middle portions of the
Eocene Epoch. During this time, ancestral horses, primates, and rodents, among many other mammal groups, were common at Raven Ridge. At the southern edge of Raven Ridge are found the only available surface coal beds in the area. The rocks of Raven Ridge were originally deposited on or near a shore line as horizontal sedimentary layers within the
Uinta Basin.
Uplift and
folding associated with the later stages of the
Laramide Orogeny subsequently tilted them into a nearly vertical position. ==Plants==